Finding the Fourth Proportional to 311,909.05, 430,236.28 and 204,486.04
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Solution
The fourth proportional to 311,909.05, 430,236.28 and 204,486.04 is: 282,060.79
Step by Step Solution
- Step 1: Write the proportion equation
311,909.05 : 430,236.28 = 204,486.04 : x - Step 2: Convert to fraction form
311,909.05/430,236.28 = 204,486.04/x - Step 3: Cross multiply
311,909.05x = 430,236.28 × 204,486.04 - Step 4: Simplify right side
311,909.05x = 87,977,313,161.53 - Step 5: Solve for x
x = 87,977,313,161.53/311,909.05 - Step 6: Final answer
x = 282,060.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.